Fair Value Measurements Fair Value Measurements (Details) (USD $)	6 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Sep. 29, 2013	Dec. 30, 2012 Fair Value, Inputs, Level 3 [Member]	Feb. 18, 2009 Fair Value, Inputs, Level 3 [Member]	Mar. 30, 2014 1st Lien Agreement [Member]	Dec. 29, 2013 1st Lien Agreement [Member]	Mar. 30, 2014 2nd Lien Agreement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value						$ 593,000,000		$ 176,750,000
Debt, Long-term and Short-term, Combined Amount	802,451,000		834,558,000				45,000,000
Loss (gain) on Sale of Investments	0	7,093,000
Obligations, Fair Value Disclosure				$ 300,000	$ 2,300,000